The Flash Casts Shadowhunters Star as New Ice Villain in Season 7 There will be a chilly new villain for Team Flash to contend with when The CW's The Flash returns for Season 7. According to Shadowhunters actor Jon Cor has been cast as Mark Stevens/Chillblaine in a recurring role for the upcoming season. The announcement gives The Flash fans their first taste of what new threats Central City's heroes will face, presumably after the season wraps up the storylines left unfinished from Season 6 due to the COVID-19 shutdown. According to the official character description, "Scientist Mark Stevens is a charismatic bad boy obsessed with cryogenic technology. But when he's not breaking into corporate safes, he's busy breaking hearts with his irresistible charm and roguish style. Armed with his own cold weapons, he'll become a new thorn in the side of Team Flash as the DC Comics villain Chillblaine." Viewers may best recognize Cor from his role as Hodge Starkweather on